Phase 4 refers to the fourth stage of the Marvel Cinematic Universe (MCU), which began after the events of Avengers: Endgame. This phase includes a mix of movies and television series that expand the MCU's storyline and introduce new characters. Key releases in Phase 4 include WandaVision, Black Widow, and Spider-Man: No Way Home. In Phase 4, the focus shifts to exploring themes of identity, legacy, and the multiverse. The interconnected nature of the films and shows allows for deeper character development and new narratives. This phase aims to set the stage for future adventures within the MCU.